Gas and gasolene engine.



PATENTED JUNE 18, 190% P. PURST.

GAS AND GASOLENE ENGINE.

APPLIUATION FILED NOV 29 1904.

No. 857,455. PATENTED JUNE 13. 1907.

. P. FURS'I'.

GAS AND GASOLENE ENGINE.

APPLICATION TILED HOV. 29, 1904.

2 SHEETS-SHEET 2.

witness I A further object 3 5 PETER FIRST, OF ANDERSQN, ENDIANA. eA-s AND GASGLENE sweets.

pecifieation No. senses.

oi." Letters Patent.

Patented mine 18, 1907.

Application filed November 2 9, 1904. v Serial No. 234.763

T @515 whomit may concern: w

Be it known that 1, PETER Former, a, citizen of the United States, IGSldlIL at Anderson,

in the county of Madison and State oi inrlisns, have invented new and. useful improvements in Gas and Gssolene Engines, of which the following is a specification This invention relates toezrplosive engines of the type in ploycc! as the driving medium. and. embodies in its Ol'gtlllZLt-IOD s SL'LP301i111Lg frame having a pair of opposed cy inders ivoted for oscillation therein and provifilet Wiilll'SUI-.

rounding jackets receiving a. cooling medium, there helng arranged for reciprocation in the cylinders s pair of pistons connected with the drive shaft, in to m j o urnale'cl in the frame at a point between the cylinders, which are provided with vslve controlled inlet and exhaust ports.

The invention lissfoi'its objectsto provide a comparatively simple, inexpensive device of this character wherein 21 direct connection may he had between. the pistons and drive shaft and this owing to the oscillatory movement of the cylinders, one wherein the cooling medium may be introduced into and dischargmtfrom the jackets through the journals of the cylinders, and one wherein the inlet 'an'rl exhaust ducts for conveying the motive fluid are journaled concentrically with the pivotal axes oi the cylinders, thereby permitting free oscillation of the letter.

vide an improved mechanism for autornatic' sllv and alternately operating the exhaust valves of the respective cylinders at proper predetermined intervals.

To these ends the invention. comprises the novel features oi construction and combine-- tion of per ts more full y hereinafter described;

lo the accoizipcnying drawings, Figure 1 is zlfxsicle elevation of an engine embodying the invention. Fig; 2 is a vertical longitudinal section taken centrally through the some. Fig, 3 is a central horizontal sectional plan, the section being taken on the line 33 of F1". 2. v

Re crring to the drawings, 1 designates a supporting frame having journalcd at its longitudinal ccl'lter for rotation a mwcr shaft 2 provided with oppositely disposed. crank portions 3, them being fixed upon. the shaft a balance Wheel 4, a belt pulley 5 and a, toothed pinion 6.-

Pivotedin the frame for oscillation is a which gas or gesolene is en1- pair of cylinders 7 arranged respectively at opposite-sidesof the shaft 2, these cylinders being surrounded by water ackets 8 carrying integral tubular journals 9 constituting the pivotal axes of the cylinders and having hearing in suitable boxes 10 carried by the frame. justment in a direction longitudinally of the frame by means of adjusting members or screws 11 and in a direction transversely of theirome through the medium oi suxilia r adjusting members 12 for s purpose whics will hereinafter appear.

Arranged for reciprocation es usual in the cylinders 7 are ")istons 13 of ordinary construction csrrie hypiston rods 14' coupled respectively directly with the crank portions 3 of the shaft, While each cylinder 7 has comniunicoting with its jacket 8, through the medium of the hollow journals 9, on inlet pipe or duct 15 coupled to one'of the j ournals and a. discharge pipe or duct 16 coupled to the stile cooling medium rosy be readily admitted to and for circulation through the duct around the cylinder and be finally discharged from the jacket.

Coupled to each of the invention is to pro rear end. of the latter is an inlet pipe or duct 17 and, so oppositely disposed exhaust pi e or duct 18 adapted respectively for odnutting the charges of gas, gasolene or other 1notive fluid and exhausting the gases and other products of combustion after the explosion of the eharges, these pipes, which are angulerly cent as illustrated in Lig. 3, being pivoted or journelcd in boxes or ranged concentric with the journals 9 and connected to the cylinders by means of movement or oscillation of the cylinders upon their axes is permitted.

Arranged in the intake pipes 17cm nor:

molly closed pupoet valves 2 adopted. to

open automatically under the influence of the suction or vacuum crested by the cutward strokes of the pistons to thus permit a charge of gas to enter the cylinders, while the exhaust. pipes 18 are provided with vorticslly disposed normally closed exhaust valves provided with stems 23 which normally rest at theirouter or lower ends upon operating Iriemhers or lovers 24: cacti pivot ed at one oml. to its cylimlm' and. provided at its other or free endwith. a com portion or head 1'25, there being arranged in the shilling other journal, avhereby Water or other suit-- cylinder at the outer or swivel oints or ecu lin s Whcreb tree,

.l h .l

The boxes 10 are adapted for adbearings .19 ar- TOO boxes through which the valve stems 23 Work normally expanded springs 26 for maintaining the valves ,in closed position. Suitably journaled in the frame *1 immediately beneath the shaft 2 is a stub shaft 27 on which is fixed a double headcdcam member 28 and a gear 29 in mesh with the pinion 6, the heads 29 of the cam member being adapted to act alternately and respectively dponauxiliary operating members or levers 30 ivoted between their ends to the frame 1 and acting in turn at their outer ends upon the cam heads 25 of themain members '24 for opening the valves 22.

In practice, and under the impulse of a char e of gas exploded in one, say, for ex- 1 the instroke of its piston, this action being continued throughout the period of operation of the engine. Durin the movements of the istons their respective c. lindersj, will be oscifiated u on their pivots, t 1153- insuring atall times a ect movement of the pistons and at the same time minimizing friction on thefparts and the wear incident to suchfrictiorl, this oscillation of the cylinders being i the cam heads 29 will act upon the'adjacent rendered feasible owing to the inlet the pivotal axes of thecylinders; the instroke of the pi tons for effecting exhaust ends of the levers 30 and, through the medium of the levers 24, open I the exhaust and ex- I haustpipes being journaled concentric with valves, being understood, of course, that the positionof the cams upon the shaft and the timing of the movement of the parts 'is such that the exhaust valves will be opened in. the respective *cylin'ders alternately and at proper intervals. It may be mentioned that owing to the journals 9 being pivoted in boxes which have an adjustment longitudinally of the frame and through the adjustment of the journals in a direction transverselyof the frame the cylinders may be readily positionedrelative to the shaft when initially setting u the engine and to com- 1 ensate for wear urin'g the operation of the. atter. I A

Havin thus fully described-the invention, what is c aimed as new, is: i In an engine, a frame, a pair eing rovided with inlet andexfhaust: ports, a rive shaft journaled in the frame between the" cylinders and having crank portions, pistons arranged for reciprocationin the cyl nders and having their rods connected directl with the respective. crankf j ,portions of thes aft, spring pressed valves arranged for normally closing the exhaust ports, operating members pivotally mounted on the cylinders in position to act upon the .1 Y op ,cylin'derspivoted for oscillation therein, said icylinders exhaust valves, pivoted auxiliary levers distposed to act vrespectively on said members for -75 iopeniug the valves, a stub shaft gournaled in the frame beneath the drive sha t, 'gear con nections between the shafts for rotating the, stub shaft ands double cam member fixed on the latter and adapted to positively actuate the aiixiliary levers.

In testimony whereof, I afiix' my. signature in presence of two witnesses.

J PETER FURST Witnesses:

JULIA A. Moons, -BELLE CHIPMAN Moons. 

